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Fehral wire

The company “Atomtehnology” ltd offers from the presence of the wire of fehral stock in Dnepropetrovsk city. Resistant – an alloy of iron, chromium and aluminum, and with a small particle of the other elements.There are four major brands of alloy: Cr23Al5T, Cr23Al5, Cr23Al5A, and Cr27Al5A

The chemical composition of the most common Resistant.

Alloy

C

Mn

Si

Cr

Ni

Al

Fe

Ti

S

P

Cr23Al5T

0,15

0,7

≤1,0

12,0-15,0

≤0,6

3,5-5,5

Ост.

0,15-0,4

0,025

0,035

Cr23Al5

0,06

0,5

≤0,7

21,5-24,5

≤0,6

4,5-5,5

–

0,020

0,025

Cr23AL5А

0,05

0,3

≤0,6

21,5-23,5

≤0,6

4,6-5,3

–

0,015

0,020

Cr27AL5А

0,05

0,3

≤0,6

26,0-28,0

≤0,6

5,0-5,8

–

0,015

0,020

Due to very low nickel content, fehral is cheaper as compared with nichrome, but not manufacturable sinceit is impossible to manufacture of thin wire. Practically, fehral use the same place where nichrome, although he is able to withstand less than the amount of heat, but the maximum operating temperature is higher and it becomes about 1000C.

Resistant mark Cr23Al5T ousted from the production of other brands fehrali, mentioned above. Since the price is the same,but the brand Cr23Al5T more heat resistant and heat resistant. Very useful properties of this brand are: high electrical resistance, high heat resistance (ability to resist oxidation of the alloy at elevated temperatures), high corrosion resistance (the ability of the alloy to resist the corrosive effects of the environment), small temperature coefficient of electrical resistivity, Fehralevaya wire is mainly produced in the form of wire and used for the production of electric heaters,which are used in almost all industries, as well as units of the thermal action and appliances.

Wire doped with yttrium, used a heat gun, hair dryers, termovintelyatorah. It should be noted that the larger the wire diameter of the heater, the higher the maximum operating temperature. For comparison. Maximum operating temperature alloys Nichrome and Resistant. Nichrome Cr20Ni80 – 1000C. Nichrome Cr15Ni60 – 1250C. Resistant Cr23Al5T – 1000C. The resistivity nichrome wire and wire fehrali Nichrome Cr20Ni80 more than 3 mm – 1.12 ohms * mm / m. Nichrome Cr15Ni60 more than 3 mm – 1.13 ohms * mm / m. Resistant Cr23Al5T more than 3 mm – 1.39 ohms * mm / m. Resistant wire, designed for different purposes, in different ways and labeled. Letter H – wire suitable for the manufacture of heating elements. The letter C – wire intended for resistance elements. Letters TEN – Resistant wire used for the manufacture of tubular electric heaters. Wire diameters of about 0.1 mm, is one of the most preferred materials. To date, wire Resistant – a leader in the metal market, because no one can ignore the its excellent technicalquality and high consumer properties. Price is also lower than that of nichrome, because there is an expensive nickel replaced by cheaper aluminum. In our company, “Atomtehnology” ltd, you can order a wire Resistant, any desired brand, diameter, andsquare footage.